Bed



FIG. 1 is a perspective view of a bed showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof; and,

FIG. 4 is a right side elevational view (left side elevational view is a mirror image thereof).

The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a bed, as shown and described. 